refactor: monogame 2D camera now use engine events

Engine.Integration/Engine.Integration.MonoGame/Behaviours/MonoGameCamera2D.cs

@@ -7,9 +7,9 @@ namespace Engine.Integration.MonoGame;
 
 public class MonoGameCamera2D : BehaviourBase, ICamera2D, IFirstFrameUpdate, IPreDraw
 {
-    public event MatrixTransformChangedArguments? OnMatrixTransformChanged = null;
-    public event ViewportChangedArguments? OnViewportChanged = null;
-    public event ZoomChangedArguments? OnZoomChanged = null;
+    public Event<MonoGameCamera2D> OnMatrixTransformChanged { get; } = new();
+    public Event<MonoGameCamera2D> OnViewportChanged { get; } = new();
+    public Event<MonoGameCamera2D> OnZoomChanged { get; } = new();
 
     private Matrix _matrixTransform = Matrix.Identity;
 
@@ -28,7 +28,7 @@ public class MonoGameCamera2D : BehaviourBase, ICamera2D, IFirstFrameUpdate, IPr
                 return;
 
             _matrixTransform = value;
-            OnMatrixTransformChanged?.Invoke(this);
+            OnMatrixTransformChanged.Invoke(this);
         }
     }
 
@@ -47,7 +47,7 @@ public class MonoGameCamera2D : BehaviourBase, ICamera2D, IFirstFrameUpdate, IPr
                 return;
 
             _viewport = value;
-            OnViewportChanged?.Invoke(this);
+            OnViewportChanged.Invoke(this);
         }
     }
 
@@ -62,7 +62,7 @@ public class MonoGameCamera2D : BehaviourBase, ICamera2D, IFirstFrameUpdate, IPr
                 return;
 
             _zoom = newValue;
-            OnZoomChanged?.Invoke(this);
+            OnZoomChanged.Invoke(this);
         }
     }
 
@@ -102,8 +102,4 @@ public class MonoGameCamera2D : BehaviourBase, ICamera2D, IFirstFrameUpdate, IPr
 
     protected sealed override void InitializeInternal() => Transform = BehaviourController.GetRequiredBehaviour<ITransform2D>();
     protected sealed override void FinalizeInternal() => Transform = null!;
-
-    public delegate void MatrixTransformChangedArguments(MonoGameCamera2D sender);
-    public delegate void ViewportChangedArguments(MonoGameCamera2D sender);
-    public delegate void ZoomChangedArguments(MonoGameCamera2D sender);
 }